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Vizio not turning on

Power supply seems to be good, tested the voltages on cn9902 and are ok. Green indicator turn on but no image or sound, if press power buton again green indicator stays on

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SOURCE: Sharp LC37D44U Power LED was flashing green. TV

I had the same problem. all the service reset would only make the display come on for a few second with no "k" on the screen - only the channel would show up. I purchased a complete set of board for the lcd on ebay, and started swapping them one by one. The inverter boards were the culpret. Tele working 100% since that board swap.

Posted on Apr 08, 2011

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Hi i have a Vizio E470-A0 That wont turn on. I press the power button and it turns on for a second then fades or just cuts off.


Does your 12 volt remain at 12 after it shuts off or does it drop to 0?..This model was known for issues with the LED lamps themselves but Ive seen a number of sets where the LED's were fine and it was the power supply or main boards bad

Oct 16, 2017 | Vizio Televison & Video

2 Answers

I have a vizio TV and last night the power flickered and then no picture just sound came back??


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/.
Some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Jul 27, 2015 | Vizio Televison & Video

3 Answers

I have a Visio TV, the green light turns on briefly, then orange turns on solid, tv will not turn on, no picture no sound, why?


It looks like the control board is not receiving a voltage that it is expecting to tell it the TV is fully on, and is going into a fail-safe shutdown mode. I would start by looking for swollen capacitors on the boards in the set as well as for loose/bad solder connections on those boards. Aside from that you would need a service manual and some test equipment to troubleshoot it. Sorry I can't be more help, I have not had to work on this particular model before.

Jul 11, 2015 | Vizio L37 Television

2 Answers

No picture or sound.


Hi, it seems you have a faulty mainboard, but the better and more secure option to avoid spending money unnecessary it's to contact directly to Vizio technical support:
Email: techsupport@vizio.com
Tel: (877) 698-4946 Fax: (949) 585-9563
Hours of operation: Monday - Friday: 6 am to 9 pm
Saturday - Sunday: 8 am to 4 pm
Please have your VIZIO model number, serial number, and date of purchase available before you call.

Mar 17, 2017 | Vizio VT420M LCD TV

1 Answer

Green lights...no power. HELP!


This could be a problem with your power supply. If the motherboard sees that the voltages from your power supply are low, it will turn itself back off.

You can test your power supply by unplugging all of your internal power cables, ground out the green wire on the 20-pin/24-pin ATX connector and check your yellow (12v), red (5v) and orange (3.3v) wires. If the voltages come back more than 10-15% off, you will most likely need a new power supply.
Even if you have good voltages using the test method above, it is only an indication that your voltages are good at zero load. Your power supply may still fail under normal load. If you have recently added any hardware to your computer, remove it and try again. If this still doesn't work or you haven't added any hardware recently, replace your power supply.

May 13, 2010 | Computers & Internet

1 Answer

Vizio P50HDM No Picture/No Sound


this is most likely the sustainer board(s) problem. Replacing the sustainer boards should correct this problem for you. you can get the parts at vancebaldwin.com

May 29, 2009 | Vizio P50HDTV10A 50 in. Plasma HDTV

1 Answer

Vizio P50HDM No Picture/No Sound


replace the sustainer boards should correct this problem. New sustainer boards may cause red and green pixilation. If this happen, replace control board and TV is as good as new.

Apr 05, 2009 | Vizio P50HDTV10A 50 in. Plasma HDTV

2 Answers

Vizio p42 type sp42a nov 2004 hd tv


POWER SUPPLY OR LCD PANEL INVERTER BOARDS . AVAILABLE THROUGH VIZIO , PARTSTORE.COM OR EBAY

May 14, 2008 | Vizio L32 32 in. LCD HDTV

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